Hermann essee



(No Model.)

H. ESSER.

INK SUPPLYING DEVICE.

Patented June 19, 1888.

UNITED STATES PATENT OFFICE.

HERMA NN ESSER, OF HOBOKEN, NEW JERSEY.

lNK-SUPPLYING DEVICE.

$PECIFICATION ionizing part of Letters Patent No. 384,899, datedJune 19, 1888.

Application filed November ll, 1887. Serial X0. 254,887. (No model.)

,To all whom it may concern.-

-- Be it known that I, HERMANN ESSER, of Hoboken, in the county of Hudson and State of New Jersey, have invented a certain new and Improved Ink- Supplying Device for Draftsnien, of which the following is a specification.

The device is adapted to fit in the mouth of an ordinary fluid-ink bottle, and to take up a proper quantity of the ink and introduce it between the blades of a draftsmans pen. It may apply with any of the ordinary forms of bottles for fluid india-ink.

I have discovered that a tube of glass may be contracted and flattened at one end, so as to apply from above between the blades of a draftsmans pen and serve both to introduce and remove ink. In practice both these ends may be attained to a certain extent. I employ such a tube of glass, open at both ends, with an adjustable cap of rubber fitted on and extending above its upper end. This tube is inserted axially through a cork or other stopper of suitable size and length to be conveniently introduced and removed. The glass tube may be adjusted up and down in the cork, and the rubber cap may be adjusted up and down on the upper end of the tube. The quality of ink taken at each introduction into the bottle may be varied by adjusting the rubber cap. By compressing the cap and again liberating it the contained air may be forced out and a partial vacuum formed which draws up any ink which is presented to it. \Vhen the tube is thus operated in the ink-bottle, it draws up ink from the bottle. When it is thus placed with its wedgepoint between the blades of the pen and the rubber cap pressed, it charges the pen with fresh ink from the bottle.

The device allows the last drop of ink to be taken from the bottle. By forcing out the air from the rubber cap through the ink in the bottle the ink is stirred up at each operation, so that it is prevented from settling.

The accompanying drawings form a part of this specification, and represent what I consider the best means of carrying out the invention.

Figure 1 is an elevation showing the device in place in a bottle, and Fig. 2 is a corresponding vertical section thereof. Fig. 3 is an elevation showing the device removed from the bottle. The remaining figures are ona larger scale. Fig. 4 is an enlarged vertical section of the lower end of the tube, taken on line mm of Fig. 6. Fig. 5 is a similar section taken at right angles to Fig.4 and on line 3 y of Fig.

6. Fig. 6 is a bottom end view of the tube.

Similar letters of reference indicate corresponding parts in all the figures where they occur.

A is the bottle, which may be in allrespects of an ordinary and long-approved character.

B is a cork matching the bottle-mouth.

G is the ink.

D is a tube of glass, certain portions being designated, when necessary, by additional marks, as D. The lower end, D, is tapered and flattened. The upper end, D, is smoothly rounded and receives a cap, E, of soft vulcanized india-rubber, adapted to hug tightly on the tube.

\Vhen the bottle is standing unused,the cork thus equipped serves as a stopper to exclude ink in the bottle gets low, the tube D is shifted successively downward by thrusting it forcibly through the stopper. As the cap is raised and a larger portion thereof stands above the upper end, D of the rigid tube, 9. correspondingly larger quantity of air will be expelled when it is compressed and a greater quantity of ink will be drawn up in the tube ready to be injected into the pen when the cap is again compressed. l

The device is cleanly and may give exactly any quantity of ink at each operation according as the cap is adjusted. I attach importance to the contracted and fiattenedform of the end D, because it is adapted to reach down in the wedge-shaped space between the blades of the pen nearly to the point.

I claim as my invention 1 bly upon its body between the ends, all corn 1. The ink supplying device herein de- I bined and arranged forjoint operation as and scribed, the same comprising the tube D, and for the purpose specified. l5

a cylindrical rubber cap, E, fitting upon its In testimony whereofIhavehereunto set my 5 upper end and arranged, as shown, so that it hand, at New York city, this 10th day of Nomay be slid thereon to vary its capacity, as vember, 1887, in the presence of two subscriband for the purpose specified. ing Witnesses.

2. The ink-suppiyin device herein described, the same compr ising a tube, D, con- HERMANN ESSER' 1o tracted andfiattened at its lower end, a cylin- \Vitnesses:

drical rubber cap, E, fitting adjustabiy upon M. F. BOYLE,

its upper end, and a cork, B, fitting adjnsta- I H. A. JOHNSTONE. 

